initial checkin of rfdsatt (clone of stm32 usart example)
parent
14014d7861
commit
84524934a2
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@ -0,0 +1,96 @@
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##
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## This file is part of the libopencm3 project.
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##
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## Copyright (C) 2009 Uwe Hermann <uwe@hermann-uwe.de>
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##
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## This library is free software: you can redistribute it and/or modify
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## it under the terms of the GNU Lesser General Public License as published by
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## the Free Software Foundation, either version 3 of the License, or
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## (at your option) any later version.
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##
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## This library is distributed in the hope that it will be useful,
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## but WITHOUT ANY WARRANTY; without even the implied warranty of
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## MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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## GNU Lesser General Public License for more details.
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##
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## You should have received a copy of the GNU Lesser General Public License
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## along with this library. If not, see <http://www.gnu.org/licenses/>.
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##
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PREFIX ?= arm-none-eabi-
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TARGETS := stm32/f0 stm32/f1
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TARGETS += sam/d
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# Be silent per default, but 'make V=1' will show all compiler calls.
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ifneq ($(V),1)
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Q := @
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# Do not print "Entering directory ...".
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MAKEFLAGS += --no-print-directory
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endif
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OPENCM3_DIR ?= $(realpath libopencm3)
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EXAMPLE_RULES = elf
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all: build
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bin: EXAMPLE_RULES += bin
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hex: EXAMPLE_RULES += hex
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srec: EXAMPLE_RULES += srec
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list: EXAMPLE_RULES += list
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images: EXAMPLE_RULES += images
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bin: build
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hex: build
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srec: build
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list: build
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images: build
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build: lib examples
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lib:
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$(Q)if [ ! "`ls -A $(OPENCM3_DIR)`" ] ; then \
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printf "######## ERROR ########\n"; \
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printf "\tlibopencm3 is not initialized.\n"; \
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printf "\tPlease run:\n"; \
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printf "\t$$ git submodule init\n"; \
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printf "\t$$ git submodule update\n"; \
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printf "\tbefore running make.\n"; \
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printf "######## ERROR ########\n"; \
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exit 1; \
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fi
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$(Q)$(MAKE) -C $(OPENCM3_DIR)
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EXAMPLE_DIRS:=$(sort $(dir $(wildcard $(addsuffix /*/*/Makefile,$(addprefix examples/,$(TARGETS))))))
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$(EXAMPLE_DIRS): lib
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@printf " BUILD $@\n";
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$(Q)$(MAKE) --directory=$@ OPENCM3_DIR=$(OPENCM3_DIR) $(EXAMPLE_RULES)
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examples: $(EXAMPLE_DIRS)
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$(Q)true
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examplesclean: $(EXAMPLE_DIRS:=.clean)
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clean: examplesclean styleclean
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$(Q)$(MAKE) -C libopencm3 clean
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stylecheck: $(EXAMPLE_DIRS:=.stylecheck)
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styleclean: $(EXAMPLE_DIRS:=.styleclean)
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%.clean:
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$(Q)if [ -d $* ]; then \
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printf " CLEAN $*\n"; \
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$(MAKE) -C $* clean OPENCM3_DIR=$(OPENCM3_DIR) || exit $?; \
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fi;
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%.styleclean:
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$(Q)$(MAKE) -C $* styleclean OPENCM3_DIR=$(OPENCM3_DIR)
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%.stylecheck:
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$(Q)$(MAKE) -C $* stylecheck OPENCM3_DIR=$(OPENCM3_DIR)
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.PHONY: build lib examples $(EXAMPLE_DIRS) install clean stylecheck styleclean \
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bin hex srec list images
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@ -0,0 +1,41 @@
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##
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## This file is part of the libopencm3 project.
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##
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## Copyright (C) 2009 Uwe Hermann <uwe@hermann-uwe.de>
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##
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## This library is free software: you can redistribute it and/or modify
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## it under the terms of the GNU Lesser General Public License as published by
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## the Free Software Foundation, either version 3 of the License, or
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## (at your option) any later version.
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##
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## This library is distributed in the hope that it will be useful,
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## but WITHOUT ANY WARRANTY; without even the implied warranty of
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## MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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## GNU Lesser General Public License for more details.
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##
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## You should have received a copy of the GNU Lesser General Public License
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## along with this library. If not, see <http://www.gnu.org/licenses/>.
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##
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BINARY = rfdsatt
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LDSCRIPT = ./stm32f103-openblt.ld
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# include ../../Makefile.include
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LIBNAME = opencm3_stm32f1
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DEFS += -DSTM32F1
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FP_FLAGS ?= -msoft-float
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ARCH_FLAGS = -mthumb -mcpu=cortex-m3 $(FP_FLAGS) -mfix-cortex-m3-ldrd
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################################################################################
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# OpenOCD specific variables
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OOCD ?= openocd
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OOCD_INTERFACE ?= stlink-v2
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OOCD_TARGET ?= stm32f1x
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all: elf bin srec
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include ../rules.mk
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@ -0,0 +1,103 @@
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/*
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* This file is part of the libopencm3 project.
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*
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* Copyright (C) 2009 Uwe Hermann <uwe@hermann-uwe.de>
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*
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* This library is free software: you can redistribute it and/or modify
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* it under the terms of the GNU Lesser General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public License
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* along with this library. If not, see <http://www.gnu.org/licenses/>.
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*/
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#include <libopencm3/stm32/rcc.h>
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#include <libopencm3/stm32/gpio.h>
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#include <libopencm3/stm32/usart.h>
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static void clock_setup(void)
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{
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rcc_clock_setup_in_hsi_out_48mhz();
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/* Enable GPIOC clock. */
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rcc_periph_clock_enable(RCC_GPIOA);
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rcc_periph_clock_enable(RCC_GPIOB);
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rcc_periph_clock_enable(RCC_GPIOC);
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/* Enable clocks for USARTs */
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rcc_periph_clock_enable(RCC_USART1);
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rcc_periph_clock_enable(RCC_USART2);
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}
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static void usart_setup(void)
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{
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/* Setup GPIO pin GPIO_USART1_TX. */
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gpio_set_mode(GPIOA, GPIO_MODE_OUTPUT_50_MHZ,
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GPIO_CNF_OUTPUT_ALTFN_PUSHPULL, GPIO_USART1_TX);
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/* Setup UART parameters. */
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usart_set_baudrate(USART1, 115200);
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usart_set_databits(USART1, 8);
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usart_set_stopbits(USART1, USART_STOPBITS_1);
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usart_set_mode(USART1, USART_MODE_TX);
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usart_set_parity(USART1, USART_PARITY_NONE);
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usart_set_flow_control(USART1, USART_FLOWCONTROL_NONE);
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/* Finally enable the USART. */
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usart_enable(USART1);
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/* Setup GPIO pin GPIO_USART2_TX. */
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gpio_set_mode(GPIOA, GPIO_MODE_OUTPUT_50_MHZ,
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GPIO_CNF_OUTPUT_ALTFN_PUSHPULL, GPIO_USART2_TX);
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/* Setup UART parameters. */
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usart_set_baudrate(USART2, 115200);
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usart_set_databits(USART2, 8);
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usart_set_stopbits(USART2, USART_STOPBITS_1);
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usart_set_mode(USART2, USART_MODE_TX);
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usart_set_parity(USART2, USART_PARITY_NONE);
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usart_set_flow_control(USART2, USART_FLOWCONTROL_NONE);
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/* Finally enable the USART. */
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usart_enable(USART2);
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}
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static void gpio_setup(void)
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{
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/* Set GPIO15 (in GPIO port B) to 'output push-pull'. */
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gpio_set_mode(GPIOB, GPIO_MODE_OUTPUT_2_MHZ,
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GPIO_CNF_OUTPUT_PUSHPULL, GPIO15);
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}
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int main(void)
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{
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int i, j = 0, c = 0;
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clock_setup();
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gpio_setup();
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usart_setup();
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/* Blink the LED (PB15) on the board with every transmitted byte. */
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while (1) {
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gpio_toggle(GPIOB, GPIO15); /* LED on/off */
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usart_send_blocking(USART1, c + '0'); /* USART1: Send byte. */
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usart_send_blocking(USART2, c + '0'); /* USART2: Send byte. */
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c = (c == 9) ? 0 : c + 1; /* Increment c. */
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if ((j++ % 80) == 0) { /* Newline after line full. */
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usart_send_blocking(USART1, '\r');
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usart_send_blocking(USART1, '\n');
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usart_send_blocking(USART2, '\r');
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usart_send_blocking(USART2, '\n');
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}
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for (i = 0; i < 800000; i++) /* Wait a bit. */
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__asm__("nop");
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}
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return 0;
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}
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@ -0,0 +1,32 @@
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/*
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* This file is part of the libopencm3 project.
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*
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* Copyright (C) 2009 Uwe Hermann <uwe@hermann-uwe.de>
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*
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* This library is free software: you can redistribute it and/or modify
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* it under the terms of the GNU Lesser General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public License
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* along with this library. If not, see <http://www.gnu.org/licenses/>.
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*/
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/* Linker script for sysmcoom rfdsatt-4ch (STM32F103XXXX, 64K flash, 20K RAM). */
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/* Define memory regions. */
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MEMORY
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{
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/* first 0x2000 bytes reserved for bootloader */
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rom (rx) : ORIGIN = 0x08002000, LENGTH = 62K
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ram (rwx) : ORIGIN = 0x20000000, LENGTH = 20K
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}
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/* Include the common ld script. */
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INCLUDE cortex-m-generic.ld
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@ -0,0 +1,270 @@
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##
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## This file is part of the libopencm3 project.
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##
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## Copyright (C) 2009 Uwe Hermann <uwe@hermann-uwe.de>
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## Copyright (C) 2010 Piotr Esden-Tempski <piotr@esden.net>
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## Copyright (C) 2013 Frantisek Burian <BuFran@seznam.cz>
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##
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## This library is free software: you can redistribute it and/or modify
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## it under the terms of the GNU Lesser General Public License as published by
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## the Free Software Foundation, either version 3 of the License, or
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## (at your option) any later version.
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##
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## This library is distributed in the hope that it will be useful,
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## but WITHOUT ANY WARRANTY; without even the implied warranty of
|
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## MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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||||
## GNU Lesser General Public License for more details.
|
||||
##
|
||||
## You should have received a copy of the GNU Lesser General Public License
|
||||
## along with this library. If not, see <http://www.gnu.org/licenses/>.
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##
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# Be silent per default, but 'make V=1' will show all compiler calls.
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ifneq ($(V),1)
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Q := @
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NULL := 2>/dev/null
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endif
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###############################################################################
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# Executables
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PREFIX ?= arm-none-eabi-
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CC := $(PREFIX)gcc
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CXX := $(PREFIX)g++
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LD := $(PREFIX)gcc
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AR := $(PREFIX)ar
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AS := $(PREFIX)as
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OBJCOPY := $(PREFIX)objcopy
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OBJDUMP := $(PREFIX)objdump
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GDB := $(PREFIX)gdb
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STFLASH = $(shell which st-flash)
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STYLECHECK := /checkpatch.pl
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STYLECHECKFLAGS := --no-tree -f --terse --mailback
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STYLECHECKFILES := $(shell find . -name '*.[ch]')
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OPT := -Os
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DEBUG := -ggdb3
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CSTD ?= -std=c99
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###############################################################################
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# Source files
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OBJS += $(BINARY).o
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ifeq ($(strip $(OPENCM3_DIR)),)
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# user has not specified the library path, so we try to detect it
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# where we search for the library
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LIBPATHS := ./libopencm3 ../../libopencm3 ../../../libopencm3
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OPENCM3_DIR := $(wildcard $(LIBPATHS:=/locm3.sublime-project))
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OPENCM3_DIR := $(firstword $(dir $(OPENCM3_DIR)))
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ifeq ($(strip $(OPENCM3_DIR)),)
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$(warning Cannot find libopencm3 library in the standard search paths.)
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$(error Please specify it through OPENCM3_DIR variable!)
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endif
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endif
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ifeq ($(V),1)
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$(info Using $(OPENCM3_DIR) path to library)
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endif
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define ERR_DEVICE_LDSCRIPT_CONFLICT
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You can either specify DEVICE=blah, and have the LDSCRIPT generated,
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or you can provide LDSCRIPT, and ensure CPPFLAGS, LDFLAGS and LDLIBS
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all contain the correct values for the target you wish to use.
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You cannot provide both!
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endef
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ifeq ($(strip $(DEVICE)),)
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# Old style, assume LDSCRIPT exists
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DEFS += -I$(OPENCM3_DIR)/include
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LDFLAGS += -L$(OPENCM3_DIR)/lib
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LDLIBS += -l$(LIBNAME)
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LDSCRIPT ?= $(BINARY).ld
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else
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# New style, assume device is provided, and we're generating the rest.
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ifneq ($(strip $(LDSCRIPT)),)
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$(error $(ERR_DEVICE_LDSCRIPT_CONFLICT))
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endif
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include $(OPENCM3_DIR)/mk/genlink-config.mk
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endif
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OPENCM3_SCRIPT_DIR = $(OPENCM3_DIR)/scripts
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EXAMPLES_SCRIPT_DIR = $(OPENCM3_DIR)/../scripts
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###############################################################################
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# C flags
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||||
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TGT_CFLAGS += $(OPT) $(CSTD) $(DEBUG)
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TGT_CFLAGS += $(ARCH_FLAGS)
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||||
TGT_CFLAGS += -Wextra -Wshadow -Wimplicit-function-declaration
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TGT_CFLAGS += -Wredundant-decls -Wmissing-prototypes -Wstrict-prototypes
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TGT_CFLAGS += -fno-common -ffunction-sections -fdata-sections
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||||
|
||||
###############################################################################
|
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# C++ flags
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||||
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TGT_CXXFLAGS += $(OPT) $(CXXSTD) $(DEBUG)
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TGT_CXXFLAGS += $(ARCH_FLAGS)
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||||
TGT_CXXFLAGS += -Wextra -Wshadow -Wredundant-decls -Weffc++
|
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TGT_CXXFLAGS += -fno-common -ffunction-sections -fdata-sections
|
||||
|
||||
###############################################################################
|
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# C & C++ preprocessor common flags
|
||||
|
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TGT_CPPFLAGS += -MD
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TGT_CPPFLAGS += -Wall -Wundef
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TGT_CPPFLAGS += $(DEFS)
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|
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###############################################################################
|
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# Linker flags
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TGT_LDFLAGS += --static -nostartfiles
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TGT_LDFLAGS += -T$(LDSCRIPT)
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||||
TGT_LDFLAGS += $(ARCH_FLAGS) $(DEBUG)
|
||||
TGT_LDFLAGS += -Wl,-Map=$(*).map -Wl,--cref
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TGT_LDFLAGS += -Wl,--gc-sections
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ifeq ($(V),99)
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TGT_LDFLAGS += -Wl,--print-gc-sections
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endif
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||||
|
||||
###############################################################################
|
||||
# Used libraries
|
||||
|
||||
LDLIBS += -Wl,--start-group -lc -lgcc -lnosys -Wl,--end-group
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||||
|
||||
###############################################################################
|
||||
###############################################################################
|
||||
###############################################################################
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||||
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.SUFFIXES: .elf .bin .hex .srec .list .map .images
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.SECONDEXPANSION:
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.SECONDARY:
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all: elf
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|
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elf: $(BINARY).elf
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bin: $(BINARY).bin
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hex: $(BINARY).hex
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srec: $(BINARY).srec
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list: $(BINARY).list
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GENERATED_BINARIES=$(BINARY).elf $(BINARY).bin $(BINARY).hex $(BINARY).srec $(BINARY).list $(BINARY).map
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|
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images: $(BINARY).images
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flash: $(BINARY).flash
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||||
|
||||
# Either verify the user provided LDSCRIPT exists, or generate it.
|
||||
ifeq ($(strip $(DEVICE)),)
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||||
$(LDSCRIPT):
|
||||
ifeq (,$(wildcard $(LDSCRIPT)))
|
||||
$(error Unable to find specified linker script: $(LDSCRIPT))
|
||||
endif
|
||||
else
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include $(OPENCM3_DIR)/mk/genlink-rules.mk
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||||
endif
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||||
|
||||
$(OPENCM3_DIR)/lib/lib$(LIBNAME).a:
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ifeq (,$(wildcard $@))
|
||||
$(warning $(LIBNAME).a not found, attempting to rebuild in $(OPENCM3_DIR))
|
||||
$(MAKE) -C $(OPENCM3_DIR)
|
||||
endif
|
||||
|
||||
# Define a helper macro for debugging make errors online
|
||||
# you can type "make print-OPENCM3_DIR" and it will show you
|
||||
# how that ended up being resolved by all of the included
|
||||
# makefiles.
|
||||
print-%:
|
||||
@echo $*=$($*)
|
||||
|
||||
%.images: %.bin %.hex %.srec %.list %.map
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||||
@#printf "*** $* images generated ***\n"
|
||||
|
||||
%.bin: %.elf
|
||||
@#printf " OBJCOPY $(*).bin\n"
|
||||
$(Q)$(OBJCOPY) -Obinary $(*).elf $(*).bin
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||||
|
||||
%.hex: %.elf
|
||||
@#printf " OBJCOPY $(*).hex\n"
|
||||
$(Q)$(OBJCOPY) -Oihex $(*).elf $(*).hex
|
||||
|
||||
%.srec: %.elf
|
||||
@#printf " OBJCOPY $(*).srec\n"
|
||||
$(Q)$(OBJCOPY) -Osrec $(*).elf $(*).srec
|
||||
|
||||
%.list: %.elf
|
||||
@#printf " OBJDUMP $(*).list\n"
|
||||
$(Q)$(OBJDUMP) -S $(*).elf > $(*).list
|
||||
|
||||
%.elf %.map: $(OBJS) $(LDSCRIPT) $(OPENCM3_DIR)/lib/lib$(LIBNAME).a
|
||||
@#printf " LD $(*).elf\n"
|
||||
$(Q)$(LD) $(TGT_LDFLAGS) $(LDFLAGS) $(OBJS) $(LDLIBS) -o $(*).elf
|
||||
|
||||
%.o: %.c
|
||||
@#printf " CC $(*).c\n"
|
||||
$(Q)$(CC) $(TGT_CFLAGS) $(CFLAGS) $(TGT_CPPFLAGS) $(CPPFLAGS) -o $(*).o -c $(*).c
|
||||
|
||||
%.o: %.cxx
|
||||
@#printf " CXX $(*).cxx\n"
|
||||
$(Q)$(CXX) $(TGT_CXXFLAGS) $(CXXFLAGS) $(TGT_CPPFLAGS) $(CPPFLAGS) -o $(*).o -c $(*).cxx
|
||||
|
||||
%.o: %.cpp
|
||||
@#printf " CXX $(*).cpp\n"
|
||||
$(Q)$(CXX) $(TGT_CXXFLAGS) $(CXXFLAGS) $(TGT_CPPFLAGS) $(CPPFLAGS) -o $(*).o -c $(*).cpp
|
||||
|
||||
clean:
|
||||
@#printf " CLEAN\n"
|
||||
$(Q)$(RM) $(GENERATED_BINARIES) generated.* $(OBJS) $(OBJS:%.o=%.d)
|
||||
|
||||
stylecheck: $(STYLECHECKFILES:=.stylecheck)
|
||||
styleclean: $(STYLECHECKFILES:=.styleclean)
|
||||
|
||||
# the cat is due to multithreaded nature - we like to have consistent chunks of text on the output
|
||||
%.stylecheck: %
|
||||
$(Q)$(OPENCM3_SCRIPT_DIR)$(STYLECHECK) $(STYLECHECKFLAGS) $* > $*.stylecheck; \
|
||||
if [ -s $*.stylecheck ]; then \
|
||||
cat $*.stylecheck; \
|
||||
else \
|
||||
rm -f $*.stylecheck; \
|
||||
fi;
|
||||
|
||||
%.styleclean:
|
||||
$(Q)rm -f $*.stylecheck;
|
||||
|
||||
|
||||
%.stlink-flash: %.bin
|
||||
@printf " FLASH $<\n"
|
||||
$(STFLASH) write $(*).bin 0x8000000
|
||||
|
||||
ifeq ($(BMP_PORT),)
|
||||
ifeq ($(OOCD_FILE),)
|
||||
%.flash: %.elf
|
||||
@printf " FLASH $<\n"
|
||||
(echo "halt; program $(realpath $(*).elf) verify reset" | nc -4 localhost 4444 2>/dev/null) || \
|
||||
$(OOCD) -f interface/$(OOCD_INTERFACE).cfg \
|
||||
-f target/$(OOCD_TARGET).cfg \
|
||||
-c "program $(*).elf verify reset exit" \
|
||||
$(NULL)
|
||||
else
|
||||
%.flash: %.elf
|
||||
@printf " FLASH $<\n"
|
||||
(echo "halt; program $(realpath $(*).elf) verify reset" | nc -4 localhost 4444 2>/dev/null) || \
|
||||
$(OOCD) -f $(OOCD_FILE) \
|
||||
-c "program $(*).elf verify reset exit" \
|
||||
$(NULL)
|
||||
endif
|
||||
else
|
||||
%.flash: %.elf
|
||||
@printf " GDB $(*).elf (flash)\n"
|
||||
$(GDB) --batch \
|
||||
-ex 'target extended-remote $(BMP_PORT)' \
|
||||
-x $(EXAMPLES_SCRIPT_DIR)/black_magic_probe_flash.scr \
|
||||
$(*).elf
|
||||
endif
|
||||
|
||||
.PHONY: images clean stylecheck styleclean elf bin hex srec list
|
||||
|
||||
-include $(OBJS:.o=.d)
|
||||
Loading…
Reference in New Issue